I go on the internet often with my notebook computer. However, I'm a bit confused by all of the various security software. In general, what types of security software should I subscribe to and install? And, are there any brands that you prefer?

Most of the security software that you are referring to is included with most software that is titled Internet Security. Anti-virus keeps viruses off of your PC. Security Center(s) notify you of any threats, as well as monitor your other security software. Anti-Spyware keeps spyware off of your PC. Firewalls will block requests to your PC from unknown sources, as well as prevent unknown applications from accessing the Internet, which helps to prevent hackers.